Ewing's Sarcoma in a Patient with Crohn's Disease Treated with Ustekinumab: A Case Report
Rameshwar R Rao1, Fataneh Majlessipour2, David A Ziring3
1Department of Pediatrics, David Geffen School of Medicine, University of California, Los Angeles, California, USA.
Abstract:
Biologic therapies have revolutionized the treatment of immune-mediated diseases. They are generally well tolerated; however, there are reports of malignancies associated with the use of these drugs. This case is of an adolescent with refractory Crohn's disease treated with ustekinumab, who subsequently developed Ewing's sarcoma. Patients treated with ustekinumab have reportedly developed B cell lymphoma, epithelioid sarcoma, as well as cancer of the lung, esophagus, ovary, testis, kidney, and thyroid. However, this is the first documented case of a patient treated with ustekinumab to develop Ewing sarcoma.
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